Eschatology or 'Last' Things: a Semantically Sound Sound Poem

Action Hero. Boy Scout. (Fine.)
Chance Saloon. My Duchess. (Mine!)
Exit (which?) to Brooklyn. (‘Hood.)
Full measure of devotion. (Blood.)

Gasp. The House. (Where?) On the Left.

Ice Age. Judgement. (Pray it’s deft.)
King of Scotland.  Leaf.  Mohican.
Name. Of Sheila. (Hey! No peekin’!)

Picture Show. The Quarter. Rites.

Supper (‘bout which Matthew writes).
Tango. (Halifax or Paris.)
Unicorn. (With elves? Oh, spare us!)

Vegas (?) Will and Testament.

The eXorcism. (Heaven-sent.)
Year at Marienbad? (Too long.)
Zulu. Done! (Or am I wrong?)

A Chorale

The Earps, with Holliday (call'd Doc) in tow
to bolster their inadequate morale,
opposed a trapezoidal UFO:
the Tonnekite at the OK Corral.

Three Earps -- that's Virgil, Morgan...Wyatt, too --
along with one Doc Holliday, their pal,
faced Dominick the Vampire. Few pull'd through.
It's the Dunnebite at the OK Corral.

Doc Holliday with Virgil, Morgan, Wyatt:
all four endured the consummate grand mal
as running sores of Attila ran riot
amid the Hunblight at the OK Corral.

The Earps ask'd ev'ry señor and señora.
They foraged but could form no rationale
for Drumpf's wall dividing Tombstone from Sonora.
Drumpf the Unbright at the OK Corral.